Sony ZS-PS30CP Service Manual page 28

ZS-PS30CP
• Waveforms • IC Block Diagrams
– MAIN Board – – MAIN Board –
IC1 SI4730-D60-GUR
IC801 q; (MXO)
1
DOUT 1
DFS
GPO3/DCLK
GPO2/INT
GPO1
2.1 Vp-p
239 ns
1 V/DIV, 100 ns/DIV N.C.
N.C.
2 IC801 wk (XO)
FMI
RFGND
N.C.
N.C.
1.5 Vp-p AMI 12
59.1 ns
500 mV/DIV, 20 ns/DIV
3
IC801 ul (RFO)
(CD play mode)
IC302 UTC8227 S
OUTPUT1
1.5 Vp-p
BOOT STRAP1
PRE GND
500 mV/DIV, 500 ns/DIV
INPUT1
IC1 4 (GPO2/INT)
4
(Radio mode)
1.1 Vp-p
30.5 s
IC803, 804 BU15TD3WG-TR
500 mV/DIV, 10 s/DIV
VIN
IC1001 ud (X2)
5
(USB mode)
GND
2.9 Vp-p
111 ns
1 V/DIV, 50 ns/DIV
STBY
ZS-PS30CP
MUX ADC
DSP
2
DIGITAL
3
MUX ADC
AUDIO
4
5
LOW-IF
6
-
7
8
CONTROL
LNA
INTERFACE
AGC
9
LNA
10
11
AGC
VCC1 1 CH-2 12 VCC2
+
2 11 OUTPUT2
–
3 10 BOOT STRAP2
4 9 RIPPLE
CH-1
NF1 5 – 8 NF2
6 + INPUT2
7
1
VOLTAGE
–
REFERENCE
+
5 VOUT
OVER CURRENT
PROTECTION
2
4 NC
THERMAL
SHUTDOWN
3 STANDBY
IC701 BA5826HFP-E2
1
VO1(–)
D.BUFF
2
VO1(+)
LEVEL
D.BUFF
DAC 24 LOUT
SHIFT
IN1 3
DAC 23 ROUT
22 GND
RESET 4
LDO
21 VA
THERMAL
20 VD
SHUT-DOWN
REGULATOR
AFC 19 RCLK
BIAS TRAP
18 SDIO
17 SCLK
16 SEN
15 RST
14 GND
REGB 5
13 GND
REGOUT 6
MUTE 7 MUTE
GND 8
9
IN2'
IN2 10
LEVEL
SHIFT
D.BUFF
VO2(+)
11
D.BUFF
VO2(–) 12
GND 13
OPOUT
14
IC901 NJM2387ADL3 (TE2)
OVER VOLTAGE
PROTECTION
BANDGAP
REFERENCE
ON/OFF
CONTROL
1 2
28 28
IC806 HT1621
28
GND
44 43
27 VO4(–)
D.BUFF
26 VO4(+)
D.BUFF
LEVEL
SHIFT
CS 1
CONTROL
RD 2 AND
25 IN4
TIMING
WR 3
SCIRCUIT
DATA 4
24 IN4'
VSS 5
VLCD 6
VDD 7
TONE
BZ 8 FREQUENCY
GENERATOR TIME BASE GENERATOR
COM0 9
23 COM1 10
BIAS
COM2 11
VCC 22 VCC
12 13 14 15 16 17 18 19 20 21 22
VCC 21 VCC
20 IN3'
19 IN3
LEVEL
SHIFT
D.BUFF
18 VO3(+)
D.BUFF
17 VO3(–)
16 RESETt
15 OPIN
REGULATOR
OVER CURRENT
PROTECTION
THERMAL
PROTECTION
3 4 5
42 41 40 39 38 37 36 35 34
DISPLAY
RAM
32
LCD DRIVER/
BASE CIRCUIT
33 SEG11
4
32 SEG12
31 SEG13
30 SEG14
29 SEG15
28 SEG16
WATCHDOG TIMER
27 SEG17
AND
26 SEG18
25 SEG19
23 SEG20
24 SEG21